Lab research on the web · Blog post · AnthropicGLM-5.3 and the spread of advanced cyber capabilities29 Sep 2026Read at anthropic.com ↗Read at sourceAll rights reservedSearchOutline · 27 paragraphsGLM-5.3 can develop working exploits end to end¶6GLM-5.3 lacks robust safeguards¶13What does this mean?¶23